Analysis of the X0(2900) as the scalar tetraquark state via the QCD sum rules

In this article, we study the axialvector-diquark–axialvector-antidiquark (AA)-type and scalar-diquark–scalar-antidiquark (SS) type fully open flavor c s ū d ̄ tetraquark states with the spin-parity J P = 0 + via the QCD sum rules. The predicted masses M AA = 2 . 9 1 ± 0 . 1 2  GeV and M SS = 3 . 0...

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Published inInternational journal of modern physics. A, Particles and fields, gravitation, cosmology Vol. 35; no. 30; p. 2050187
Main Author Wang, Zhi-Gang
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 30.10.2020
World Scientific Publishing Co. Pte., Ltd
Subjects
Flavor (particle physics)
Physics
Quantum chromodynamics
Sum rules
Tetraquark state
QCD sum rules
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Summary:In this article, we study the axialvector-diquark–axialvector-antidiquark (AA)-type and scalar-diquark–scalar-antidiquark (SS) type fully open flavor c s ū d ̄ tetraquark states with the spin-parity J P = 0 + via the QCD sum rules. The predicted masses M AA = 2 . 9 1 ± 0 . 1 2  GeV and M SS = 3 . 0 5 ± 0 . 1 0  GeV support assigning the X 0 ( 2 9 0 0 ) to be the AA-type scalar c s ū d ̄ tetraquark state.
Bibliography:ObjectType-Article-1
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ISSN:0217-751X
1793-656X
DOI:10.1142/S0217751X20501870